The 46th Training Workshop for Junior Fellows of Obstetrics and Gynecology Date: Dec. 11(Sun), 2011 Venue: Korea University Hospital(Guro, Seoul) The 5th Breast and Thyroid Workshop for Obstetricians and Gynecologists Date: Feb 19(Sun), 2012 Venue: The Catholic University of Korea               Seoul St. Mary's Hospital (Banpo, Seoul) The 47th Training Workshop of Korean Society of Obstetrics and Gynecology Date: May 18(Fri) ~ 19(Sat), 2012 Venue: Hyundai Hotel, Gyeongju